condition mean min max ZT0-3 1334.21279 1334.21279 1334.21279 ZT4-7 1158.2155985 1158.2155985 1158.2155985 ZT8-11 654.609391 654.609391 654.609391 ZT12-15 996.569301 996.569301 996.569301 ZT16-19 950.5542700000001 950.5542700000001 950.5542700000001 ZT20-23 679.661435 679.661435 679.661435